Charles River Combined Sewer Overflow Control Project
Sector: Waste Processing and Treatment • Location: Boston, Cambridge, Somerville, Massachusetts, United States
Source: Boston Herald
The Massachusetts Water Resources Authority (MWRA) has proposed a long-term control plan to address combined sewer overflows (CSOs) in the Charles River and other area water bodies. The plan includes the construction of two storage tanks with a capacity of 12.6 million gallons, 446 acres of sewer separation, and two storage conduits. The project aims to eliminate CSO discharges by 2050 and prepare
- Status
- Prospective
- Sector
- Waste Processing and Treatment, Water Supply and Storage
- Location
- Boston, Cambridge, Somerville, Massachusetts, United States of America
- Updated
- 22 Jul 2026
- Source
- Boston Herald
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Project Information
Participants
| Not available for this record. |
Status
Original status | planned |
Taiyo status | Prospective |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | The Massachusetts Water Resources Authority (MWRA) has proposed a long-term control plan to address combined sewer overflows (CSOs) in the Charles River and other area water bodies. The plan includes the construction of two storage tanks with a capacity of 12.6 million gallons, 446 acres of sewer separation, and two storage conduits. The project aims to eliminate CSO discharges by 2050 and prepare for heavier rainfall due to climate change. The total cost of the plan, including projects on the Alewife Brook and Mystic River, is estimated at $1.28 billion, with the Charles River project costing around $690 million and expected to last 28 to 33 years. |
Original sector | Water and Wastewater |
Budget |
Location
Country | United States of America (USA) |
State | Massachusetts |
City | Boston, Cambridge, Somerville |
Source
Source | Boston Herald |
URL |
More Details
Record type | Project |
Sector | Waste Processing and Treatment, Water Supply and Storage |
Article published date | 2026-05-06 |
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